Concentrated sulphuric acid () acts as a moderately strong oxidizing agent. Which of the following r — p Block Elements Chemistry Question

💡 Solution & Explanation

In reactions A, B, and D, the concentrated $H_2SO_4$ is reduced to $SO_2$ while oxidizing Cu to $Cu^{2+}$, C to $CO_2$, and $I^-$ to $I_2$, respectively. Reaction C is a simple double displacement driven by the low volatility of $H_2SO_4$ to produce volatile $HF$, with no change in oxidation states.